Cheapest camera for building obstacle avoiding drone.
I am a CSE student and for our pre final year project we are building obstacle avoiding hexacopter. We are using Pixihawk 2.4.6 and Px4 autopilot.
According to documentation, "Both planners require a 3D point cloud of type sensor_msgs::PointCloud2. Any camera that can provide such data is compatible.".
Here is the documentation :- link text So, I am new to ROS and want suggestion about what is it saying in above quote and can I use any camera for this project ? ,or do I have to use some specific one.
Please suggest a budget friendly camera.